不同测试循环下的制动鼓磨损排放研究  

Experimental Study on Wear Emission Under Different Test Cycles of Brake Drum

作　　者：危红媛 白凤月 王宠 王珊 王凤滨 张琳 吴春玲 杜天强 汪晓伟 张新峰 马尧 常鹏 郭守峰 贾春富 刘俊霆 Wei Hongyuan;Bai Fengyue;Wang Chong;Wang Shan;Wang Fengbin;Zhang Lin;Wu Chunling;Du Tianqiang;Wang Xiaowei;Zhang Xinfeng;Ma Yao;Chang Peng;Guo Shoufeng;Jia Chunfu;Liu Junting(CATARC Automotive Test Center(Tianjin)Co.,Ltd.,Tianjin 300300;CATARC Component Technology(Tianjing)Co.,Ltd.,Tianjin 300300)

机构地区：[1]中汽研汽车检验中心(天津)有限公司,天津300300 [2]中汽零部件技术(天津)有限公司,天津300300

出　　处：《汽车工程》2025年第2期301-308,341,共9页Automotive Engineering

基　　金：中汽研汽车检验中心(天津)有限公司内部自立课题(TJKY2425001)资助。

摘　　要：随着汽车排放标准的日益严格,汽车非尾气颗粒物排放特别是制动磨损颗粒物排放日益凸显。为了探究不同测试循环下的制动磨损颗粒物排放特征,本研究选取了一套鼓式制动器在基于制动惯量台改造的制动排放测试系统上开展了WLTP-Brake、WLTP、C-WTVC和CHTC-LT这4个不同测试循环下的PM_(2.5)、PN_(10)排放研究工作。研究结果显示,制动鼓在不同测试循环下的平均制动初始/终了温度存在较大差异,最高制动终了温度基本上均出现在循环中最大制动初速度对应的制动事件中;试验制动鼓在WLTP-Brake循环下的PM_(2.5)排放因子为1.67 mg/km/wheel(欧七整车排放限值7 mg/km/vehicle),因此制动鼓的颗粒物排放控制与制动盘一样需要引起重视;此外,各循环的制动初速度对制动颗粒物排放的影响明显大于平均制动减速度等制动特征参数。该研究对制动器企业进行低排放制动器的研发测试工作具有实际参考价值。With the increasingly strict emission standards for automobiles,non-exhaust particulate matter emission,especially brake wear particulate matter emission,is becoming more prominent.In order to investigate the emission characteristics of brake wear particles under different test cycles,in this study a set of drum brakes is selected to conduct research on PM_(2.5) and PN_(10) emission under different test cycles(WLTP-Brake、WLTP、C-WTVC and CHTC-LT cycle)on a brake emission testing system modified based on a brake inertia table.The research re-sults show that there are significant differences in the average initial/final braking temperature of the brake drum un-der different test cycles,and the highest final braking temperature generally occurs in the braking event correspond-ing to the maximum initial braking speed in the cycle.The PM_(2.5) emission factor of the test brake drum under WLTP-Brake cycle is 1.67 mg/km/wheel(the Euro 7 vehicle emission limit of 7 mg/km/vehicle),so the particulate matter emission control of the brake drum,like the brake disc,needs our attention.In addition,the initial braking speed of each cycle has a significantly greater impact on brake particle emission than braking characteristic parameters such as average braking deceleration.This study has practical reference value for the development and testing of low emission brakes for brake enterprises.

关 键 词：制动鼓 颗粒物排放 测试循环 

分 类 号：U46[机械工程—车辆工程]